12120100110100 has 36 divisors (see below), whose sum is σ = 27847712374524. Its totient is φ = 4562861217280.

The previous prime is 12120100110043. The next prime is 12120100110101. The reversal of 12120100110100 is 101100102121.

It can be written as a sum of positive squares in 6 ways, for example, as 96862867984 + 12023237242116 = 311228^2 + 3467454^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120100110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3564733627 + ... + 3564737026.

It is an arithmetic number, because the mean of its divisors is an integer number (773547565959).

Almost surely, 2^{12120100110100} is an apocalyptic number.

12120100110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120100110100 is an abundant number, since it is smaller than the sum of its proper divisors (15727612264424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120100110100 is a wasteful number, since it uses less digits than its factorization.

12120100110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129470684 (or 7129470677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12120100110100 its reverse (101100102121), we get a palindrome (12221200212221).

The spelling of 12120100110100 in words is "twelve trillion, one hundred twenty billion, one hundred million, one hundred ten thousand, one hundred".